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Routed Information Protocol

Routed Information Protocol. Presenter Graham C Herd. Agenda. Introduction Limitations of the protocol Specifications for the protocol Overview. Introduction. Routed Information Protocol known as RIP

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Routed Information Protocol

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  1. Routed Information Protocol Presenter Graham C Herd

  2. Agenda • Introduction • Limitations of the protocol • Specifications for the protocol • Overview

  3. Introduction • Routed Information Protocol known as RIP • Describes one protocol in a series of routing protocols based on the Bellman-Ford (or distance vector) algorithm • This algorithm has been used for routing computations in computer networks since the early days of the ARPANET • RIP is one of a class of algorithms known as "distance vector algorithms". • RIP is intended for use within the IP-based Internet • It has become a de facto standard for exchange of routing information among gateways and hosts

  4. Limitations of the protocol • Longest path involves 15 hops • Depends upon "counting to infinity" • Uses fixed "metrics"

  5. Specifications for the protocol • Routing Table Entry • Message Formats • Addressing Considerations • Timers • Input processing • Output processing

  6. Overview Parameter RIP Default Value Infinity 16 (fixed) Update time 30 sec Invalid time 180 sec Flush time 120 sec Holddown Not used • Width restriction • No direct subnet support • Bandwidth consumptive • Difficult diagnosis • Weak security • Several benefits

  7. Thank You ! • Any Questions ?

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